- irc.c: remove assumption that socket() returns fd higher than 0 (which it probably won't because of
log files opened before, but let's remove that limitation anyway); removed close() in irc_init()
since IRC_FD is always -1 at this point

- irc.c: remove assumption that socket() returns fd higher than 0 (which it probably won't because of
log files opened before, but let's remove that limitation anyway); removed close() in irc_init()
since IRC_FD is always -1 at this point